Heating and ventilating apparatus



(No Model.) 2 Sheets-Sheet 1.

W. F. WOLFE. HEATING AND VENTILATING APPARATUS. No. 571,423.

Patented Nov. 17, 1896.

(No Model.) A 2 Shets-Shet W. F. WOLFE.

HEATING AND VENTILATING APPARATUS.

No. 571,423. Patented Nov 17, 1896,

\VI LTSI E F. \VOLFE, OF NEWTON, MASSACHUSETTS.

HEATING AND VENTELATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 571,423, dated November17, 1896.

Application filed May 16, 1895. Serial No. 543,524. (No model.)

To aZZ whom it may concern:

Be it known that I, ILTSIE F. 'XVOLFE, a

citizen of the United States, residing in New- 1 ton, in the county ofMiddlesex and State of and from thence, after being properly heated,

is distributed through the building, and suitable ducts provided forconducting the vitiated air outside the building; and it consists inanovel construction of such apparatus and of valves and valve-operatingmechanism acting in connection therewith.

The main objects of the invention are to materially reduce the cost ofconstruction and to provide a simple and efficient mechanism foroperating the valves simultaneously for the purpose of shutting off thethe freshair supply from the heating-chamber when desired and, admittingthereto the air from the ventilating-ducts. I accomplish these resultsby means of the apparatus illustrated in the accompanying drawings.

Figure 1 is'a vertical sectional View of a part of a building containingmy improved construction and apparatus, the valves being shown as inposition to fresh air from the fresh-air chamber to the heatingapparatus and to carry the air from the rooms to the ventilating-shaft.Fig. 2 is a similar view, but showing the valves in position to admitthe air from the rooms through the chamber 6 to the heating apparatus,communication between the fresh-air chamber and the chamber 6 andbetween the chamber 6 and the ventilating shaft being out off.

' Referring to the drawings, 1 is the entrance to the fresh-air chamber2.

3 is the communication from the fresh-air chamber to the'heating-chamber4, which contains the heating apparatus f, which is shown as a coil ofsteam-pipe, although a furnace or othelr suitableapparatus may be used,as de sn'ec 5 5 are the hot-air supply-pipes to the various rooms.

- 77 are the ventilating-ducts from the rooms, and which terminate inthe chamber 6. This chamber has an outlet 9 to the ventilatingshaft 10,by means of which the foul air is The chamconducted outside thebuilding. her also has another outlet 8 to the heatingchamber, so thatthe air from the various rooms may be rewarmed and used over again, asit may be to advantage when the rooms are not occupied.

The openings 3, 8, and 9 are provided with valves 11', 12, and 13,respectively,so arranged and connected that when fresh air is taken fromthe fresh-air chamber the openings 3 and 9 are open and the opening 8 isclosed, as shown in Fig. 1, allowing the fresh air to pass into theheating-chamber and to the rooms and the vitiated air to pass from therooms to the chamber 6 and through the opening 9 into the shaft 10 andthus outside the building.

If it is desired to use the air from the rooms over again, which can bedone when the rooms are not occupied, the openings 3 and 9 are closedand the openingS opencd,when the air from the rooms will pass from thechamber 6 to the heating-chamber 4 and thus back to the rooms. (See Fig.2.)

The mechanism for operating the valves is fully shown in the drawings.The valves 11, 12, and 13 are pivoted, respectively, at a, a, and aAttached to each valve is a lever b b 19 and these levers are connectedby connectingbars 0 c. The lever b is a bell-crank lever, and to thefree end dis attached the handle 6. The manipulation of this handlecauses the simultaneous movementof the three valves. When the handle ispulled up, the valves 11 and 13 are open and the valve 12 is closed, asshown in Fig. 1. When the handle is pushed down, the valves 11 and 13are closed and the valve 12 is open, as shown in Fig. 2. This method ofconstruction has the advantage of being cheap and of being easily andsurely operated, it being impossible to leave any valve in a wrongposition.

By constructing and locating the cold-air chamber and the means ofadmitting the cold air thereto, as shown in the drawings, as well as bythe improved means for directing the previously-warmed air from theventilatingducts to the heating-chamber for further use when desired,the apparatus is much simplified, and the cost of construction,particularly in the matter of expensive piping for these purposes asheretofore required, will be greatly diminished. It will also occupyless space than the other forms of construction.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is-

1. In a heating and ventilating apparatus, the combination with aheating-chamber and ventilating chamber, provided with an intermediatecommunicating opening and with openings in their outside Walls,of valvescontrolling said openings, and mechanism connectin g said valves in suchmanner as to open the valves in the outside openings and to closethevalve controlling the intermediate opening and vice versa, fiuescommunicating with theheatingchamber and ventilatingchamber,respectively, and heating means within the heating-chamber.

2. The combination with a heating-chamber, and aventilating-chamber, andan intermediate partition of valve-openings in the intermediatepartition and in the outside Walls of the chambers, respective1y,valvescontrolling said openings, levers secured to said valves, and aconnecting-rod pivotally secured to each of said levers, the valves,levers and rod being so related that the valves con trolling theopenings in the outside walls will be opened simultaneously with theclosing of the intermediate valve and vice versa, flues communicatingwith each of said chambers and designed to communicate with acompartment and heating means within the heatingchamber.

In testimony whereof I have hereunto subscribed my name this bd day ofMay, A. D. 1895.

-\VILTSIE F. \VOLFE.

\Vitnesses:

A. Son GHIPMAN, CHAS. A. KELLOGG.

